Whether the upgrade of the application signature databases on the USG6000 series requires a license

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The upgrade of the application signature databases on the USG6000 series does not require a license.

Other related questions:
Whether the upgrade of the application signature databases on the USG2000 and USG5000 series requires a license
The upgrade of the application signature databases on the USG2000 and USG5000 series does not require a license.

How to upgrade the SAC signature database on an AR

The signature database file and system software are separated on Huawei devices. So the signature database file can be loaded and upgraded without affecting normal operation of other services. By default, the signature database file is named sacrule.dat, and it cannot be changed. To upgrade the signature database, contact Huawei local offices or engineers.
Note: There must be an interval of at least 20 seconds between running the sac enable signature and sac update signature commands. When specifying the name of a signature database, enter the complete path and file name to ensure that the configuration can be restored. The signature database file must use .dat as the file name extension. When the sac update signature command is run multiple times to update the signature database file, only the last configuration takes effect.
An example is as follows:
<Huawei>system-view
[Huawei] sac update signature flash:/sacrule.dat
Info: The SAC signature lib update successful.

Meaning of application protocols in the SAC signature database
You can run the display sa application-list command to view all application protocols in the current SAC signature database. The Description field in the command output indicates the detailed description of application protocols, from which you can know the meaning of application protocols.

Whether the MPLS function of the USG6000 requires a license
The MPLS function of the USG6000 series does not require a license.

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